PAL four-frame subcarrier phase detector

Details PAL four-frame subcarrier phase detector PAL four-frame subcarrier phase detector

1976-04-30

1977-10-04

Martin, John C.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 4, 358 19, H04N 962, H04N 946, H04N 5785

Patent

active

040527336

ABSTRACT:
Apparatus for digitally processing a composite video signal recorded in PAL format for producing a continuous waveform at a four-line rate indicates at any four-frame reference time if the polarity of the subcarrier is in phase with a reference or inverted for matching the subcarrier phase of two PAL signals as required in electronic splicing of video tape recordings, in special effects switching, or mixing of PAL video signals.

REFERENCES:
patent: RE28823 (1976-05-01), Coleman
patent: 3627910 (1971-12-01), Janssen et al.

Affiliated with

Also associated with

Rating

PAL four-frame subcarrier phase detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with PAL four-frame subcarrier phase detector, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PAL four-frame subcarrier phase detector will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1777493